PRELIMINARY DATA SHEET
MSP 34x1G
6.5. Manual/Compatibility Mode:
Description of DSP Write Registers
6.5.2. Volume Modes of SCART1/2 Outputs
Volume Mode SCART1
Volume Mode SCART2
linear
00 07hex
00 40hex
[3:0]
[3:0]
0hex
6.5.1. Additional Channel Matrix Modes
Loudspeaker Matrix
Headphone Matrix
SCART1 Matrix
SCART2 Matrix
I2S Matrix
00 08hex
00 09hex
00 0Ahex
00 41hex
00 0Bhex
00 0Chex
L
L
L
L
L
L
0000
RESET
logarithmic
0001
1hex
Linear Mode
Volume SCART1
Volume SCART2
OFF
00 07hex
00 40hex
H
Quasi-Peak
H
Detector Matrix
0000 0000
RESET
00hex
SUM/DIFF
0100 0000
0101 0000
0110 0000
0111 0000
1000 0000
1001 0000
40hex
50hex
60hex
70hex
80hex
90hex
AB_XCHANGE
PHASE_CHANGE_B
PHASE_CHANGE_A
A_ONLY
0 dB gain
(digital full scale (FS) to 2
VRMS output)
0100 0000
40hex
+6 dB gain (−6 dBFS to 2
VRMS output)
0111 1111
7Fhex
B_ONLY
Note: SCART Volume linear mode will not be sup-
ported in the future (documented for compatibility rea-
sons only).
This table shows additional modes for the channel
matrix registers.
6.5.3. FM Fixed Deemphasis
The sum/difference mode can be used together with
the quasi-peak detector to determine the sound mate-
rial mode. If the difference signal on channel B (right)
is near to zero, and the sum signal on channel A (left)
is high, the incoming audio signal is mono. If there is a
significant level on the difference signal, the incoming
audio is stereo.
FM Deemphasis
00 0Fhex
H
50 µs
0000 0000
RESET
00hex
75 µs
0000 0001
0011 1111
01hex
3Fhex
OFF
6.5.4. FM Adaptive Deemphasis
FM Adaptive
00 0Fhex
L
Deemphasis WP1
OFF
WP1
0000 0000
RESET
00hex
3Fhex
0011 1111
6.5.5. NICAM Deemphasis
A J17 Deemphasis is always applied to the NICAM
signal. It is not switchable.
MICRONAS INTERMETALL
95
MICRONAS [ MICRONAS ]
